3 For this reason I, Paul, oa prisoner of Christ Jesus pon behalf of you Gentiles— 2 assuming that you have heard of qthe stewardship of rGod’s grace that was given to me for you, 3 show the mystery was made known to me tby revelation, uas I have written briefly. 4 vWhen you read this, you can perceive my insight into wthe mystery of Christ, 5 which was not made known to the sons of men in other generations as it has now been revealed to his holy apostles and prophets by the Spirit. 6 This mystery is1 that the Gentiles are xfellow heirs, ymembers of the same body, and zpartakers of the promise in Christ Jesus through the gospel.
7 aOf this gospel I was made ba minister according to the gift of cGod’s grace, which was given me dby the working of his power. 8 To me, ethough I am the very least of all the saints, this grace was given, fto preach to the Gentiles the gunsearchable hriches of Christ, 9 and ito bring to light for everyone what is the plan of the mystery jhidden for ages in2 God, kwho created all things, 10 so that through the church the manifold lwisdom of God mmight now be made known to nthe rulers and authorities oin the heavenly places. 11 This was paccording to the eternal purpose that he has realized in Christ Jesus our Lord,
The words This mystery is are inferred from verse 4